Accuracy&colon; ±2&percnt; &lpar;70&percnt;-99&percnt;&rpar;&comma; less than 70&percnt; no definition&period;

Pulse rate&lpar;PR&rpar;

Measurement range&colon; 30bpm-250bpm

Resolution&colon; 1bpm

Accuracy&colon; 1&percnt; or 1bpm

Low Perfusion Error

SpO2 and pulse rate can be shown correctly when pulse-filling raio is 0&period;2&percnt;&period;

Power Supply

2&ast;1&period;5V AAA Alkaline batteries

Working Current

20mA-130mA

Battery life

Not less than 12 hours

Safety type

Interior battery&comma; Type BF

Direction Sensor

Four way display

Light Sensor

Red light &lpar;wavelength 662nm-666nm 7mW&rpar;

Infrared light &lpar;wavelength 890nm-900nm 5&period;5mW&rpar;

Data update

No more than 12s

Trade terms&colon;1&period;Payment terms&colon;Pay by T&sol;T&comma; 40&percnt; deposit in advance&comma; the balance should be paid before shipment&period;2&period;Delivery time&colon;Within 35-50 days after receive deposit payment&period;3&period;Packing&colon;Carton box&period;